Daikin FVXG25K2V1B Service Manual page 123

SiBE061121
Troubleshooting
Check No.17
Refer to P.128
Check No.19
Refer to P.129
25/35 class
50 class
Note: Refer to "Application of silicon grease to a power transistor and a diode bridge" on page 226 for
detail.
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Turn off the power and turn it on
again to start the system.
Error displayed again?
NO
Check No. 19
Check the outdoor fan or
related.
OK
Radiation fin dirty?
Slightly dirty
Check No. 17
Check the installation condition.
A (°C)
98
105
YES
Has PCB been replaced?
NO
Check the radiation fin
temperature.
Above A ˚C?
YES
NG
Too dirty
Troubleshooting
YES
Check if the silicon grease
applied properly on the
radiation fin. If not, apply it
(∗). (See Note.)
∗
Silicon grease
Part No.: 1172698
NO
Replace the outdoor unit
PCB.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R14445)
112